| 摘要 |
mining, particularly, determination of commercial properties of rocks; applicable in geological prospecting and mining operations at deposits of block stones. SUBSTANCE: method includes separation of reference section on investigated area, driving of trenches and performance of geological documentation, determination of main systems of fractures and distances between them on data of geological documentation, and calculation of block yield percentage from solid stone mass. Trenches are driven on reference section to form sectors of mutually perpendicular system of trenches. Geological documentation of trench system and natural exposures and/or hole cores is effected. Block yield percentage is calculated for each sector of mutually perpendicular system of trenches. Apparent electrical resistance is determined by sectors of mutually perpendicular system of trenches and of entire investigated area. Map of isolines of apparent electrical resistance of entire investigated area is constructed using obtained data. Determined for each sector of trench system is average value of apparent resistance and juxtaposed with block yield percentage by all sectors of trench system. Linear reference graph of relationship between these parameters is constructed. After that, map of isolines of apparent electrical resistance is transformed into map of block yield percentage of natural stone from solid stone mass. EFFECT: higher accuracy of estimation of block yield percentage and possibility of estimation of sections covered with alluvium for entire depth of calculation of block stone reserves. 2 dwg, 1 tbl |
